Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] '91bdad83798c1901dc695f5d84d315e8' = '"%TEMP%\chrome.exe" ..'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] '91bdad83798c1901dc695f5d84d315e8' = '"%TEMP%\chrome.exe" ..'
Creates or modifies the following files:
- %HOMEPATH%\Start Menu\Programs\Startup\91bdad83798c1901dc695f5d84d315e8.exe
Malicious functions:
To bypass firewall, removes or modifies the following registry keys:
- [<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List] '%TEMP%\chrome.exe' = '%TEMP%\chrome.exe:*:Enabled:chrome.exe'
Creates and executes the following:
- '%TEMP%\chrome.exe'
Executes the following:
- '<SYSTEM32>\netsh.exe' firewall add allowedprogram "%TEMP%\chrome.exe" "chrome.exe" ENABLE
Modifies file system:
Creates the following files:
- %TEMP%\chrome.exe
Network activity:
Connects to:
- 'ob###.ddns.net':5552
UDP:
- DNS ASK ob###.ddns.net
